Three Vouchers & Cashback 2020

Updated September 21, 2020
Getting the best mobile, broadband and SIM plan for your home and handsets is easy with Three! Browse our Three vouchers and Three discount codes for extra savings.
Cashback Rates
£57.50 cashback
for the 12GB data 12 month SIM plan for £10 per month
10 uses today
£27.50 cashback
for the 4GB data 12 month SIM plan for £6 per month
3 uses today
£62.50 cashback
for the unlimited data 12 month SIM plan for £18 per month
1 use today
£72.50 cashback
for the unlimited 24 month SIM plan for £11 per month (half price for first 6 months, then £22 per month)
£50 cashback
for mobile broadband SIM 24 month plans with 2GB, 5GB, or 10GB of data
£50 cashback
for mobile broadband SIM 12 month plans with 1GB - 20GB of data
£15 cashback
for mobile broadband SIM 1 month plans with 2GB - 100GB of data
£60 cashback
for Huawei B535 mobile broadband device with unlimited data, 24 month contract for £22 per month
£70 cashback
for Huawei AI Cube with unlimited data on a 24 month contract for £25 per month
£70 cashback
for Huawei AI Cube with unlimited data on a 12 month contract for £32 per month and £49 upfront
£60 cashback
for Huawei B535 mobile broadband device with unlimited data, 12 month contract for £27 per month and £29 upfront
£15 cashback
for Pay As You Go Handsets
£65 cashback
for the OnePlus Nord 100GB with 100GB Data, £29 upfront cost for £34 per month on a 24 month contract
£65 cashback
for the iPhone 11 64GB with 100GB Data, £39 upfront cost for £40 per month on a 24 month contract
£65 cashback
for the iPhone SE 64GB with 100GB Data, £29 upfront cost for £29 per month on a 24 month contract
£65 cashback
for the iPhone SE 64GB with 30GB Data, £19 upfront cost for £29 per month on a 24 month contract
£65 cashback
for the Samsung Galaxy A51 128GB with 100GB Data, £19 upfront cost for £23 per month
£65 cashback
for the Samsung Galaxy A71 128GB with 100GB Data, £29 upfront cost for £27 per month
£65 cashback
for the iPhone 11 Pro 64GB with 100GB Data, £79 upfront cost for £49 per month on a 24 month contract
£65 cashback
for the Samsung Galaxy S20+ 5G with 100GB, £49 upfront cost for £45 per month
£65 cashback
for the Samsung Galaxy S20 5G Cosmic Grey with 100GB, £39 upfront cost for £39 per month
£65 cashback
for contract handset on-site offers
£65 cashback
for the Huawei P30 Pro with 100GB Data, £29 upfront cost for £32 per month
£65 cashback
for the Samsung Galaxy S10 128GB with 100GB Data, £29 upfront cost for £30 per month
£65 cashback
for the iPhone 11 Pro Max 64GB with 100GB Data, £79 upfront cost for £55 per month on a 24 month contract
£32.50 cashback
for the 8GB data 12 month SIM plan for £8 per month
£62.50 cashback
for the 30GB data 12 month SIM plan for £15 per month
£22.50 cashback
for the 1GB data 12 month SIM plan for £5 per month
£17.50 cashback
for the unlimited 1 month SIM plan for £24 per month
£50 cashback
for Apple iPad 7th Generation, 100GB data, 24 month contract for £39 per month with £49 upfront cost
£50 cashback
for Samsung Galaxy Tab A 10.1 2019, 100GB data, 24 month contract for £27 per month
£60 cashback
for the Huawei 4G Mobile WiFi with unlimited data for £22 per month
£50 cashback
for Huawei E5573bs-322 4G Mobile Wi-Fi, 40GB data, 24 month contract for £13 per month
£50 cashback
for Huawei MediaPad T5, 100GB data, 24 month contract for £25 per month
£50 cashback
for Apple iPad Pro 11, 40GB data, 24 month contract for £48 per month with £49 upfront cost

50%
OFF
21 uses today

10-50% off SIM Only plans for existing customers

50% Off
21 uses today

10-50% off SIM Only plans for existing customers

50%
OFF
3 uses today

Student Discount: Free backpack and headphones plus 50% off select plans for 6 months

Enjoy these Three mobile, tablet, and smart tech offers for students and score free gifts plus 50% off for the first 6 months!
50% Off
3 uses today

Student Discount: Free backpack and headphones plus 50% off select plans for 6 months

Enjoy these Three mobile, tablet, and smart tech offers for students and score free gifts plus 50% off for the first 6 months!

£80
OFF
1 use today

Up to £80 off in cash rewards when you refer a friend

Invite your friends and family to get up to £80 off when they sign up for a monthly Three mobile phone, as well as £40 off with SIM only plans and mobile broadband. Grab everyone you know and start saving together!
£80 Off
1 use today

Up to £80 off in cash rewards when you refer a friend

Invite your friends and family to get up to £80 off when they sign up for a monthly Three mobile phone, as well as £40 off with SIM only plans and mobile broadband. Grab everyone you know and start saving together!

£20
2 uses today

Limited Time: 100GB data pack for £20 with the pay as you go plan

£20
2 uses today

Limited Time: 100GB data pack for £20 with the pay as you go plan

50%
OFF

50% off the unlimited data plan on the Samsung Galaxy Note20 for 6 months

Check out this Three mobile deal on the Samsung Galaxy Note20 to take 50% off the unlimited data plan for the first 6 months of your contract. Don't miss out on these savings!
50% Off

50% off the unlimited data plan on the Samsung Galaxy Note20 for 6 months

Check out this Three mobile deal on the Samsung Galaxy Note20 to take 50% off the unlimited data plan for the first 6 months of your contract. Don't miss out on these savings!

£18
5 uses today

£18 for this SIM plan with 100GB data

£18
5 uses today

£18 for this SIM plan with 100GB data

50%
OFF

Apple iPhone 11 with 128GB for £29.50 a month (50% off)

50% Off

Apple iPhone 11 with 128GB for £29.50 a month (50% off)

FREE
GIFT

Free YouTube Premium for 4 months with the Samsung Galaxy Tab S7

Free Gift

Free YouTube Premium for 4 months with the Samsung Galaxy Tab S7

£39 MONTHLY
4 uses today

£39 a month for the Samsung Galaxy Note 20 Ultra 5G (regular £78)

Catch this Three mobile offer and save on the most trending product right now!
£39 Monthly
4 uses today

£39 a month for the Samsung Galaxy Note 20 Ultra 5G (regular £78)

Catch this Three mobile offer and save on the most trending product right now!

50%
OFF

50% off select tariffs on popular smartphones

Check out these Three mobile phone deals to knock 50% off tariffs on select iPhones and Samsung Galaxy handsets for 6 months. Grab yours today!
50% Off

50% off select tariffs on popular smartphones

Check out these Three mobile phone deals to knock 50% off tariffs on select iPhones and Samsung Galaxy handsets for 6 months. Grab yours today!

FREE
DELIVERY
1 use today

Free delivery on all your orders

Free Delivery
1 use today

Free delivery on all your orders

£5

New 1GB SIM for £5 includes unlimited calls and texts

£5

New 1GB SIM for £5 includes unlimited calls and texts

£30
2 uses today

Unlimited data pack for £30 with the new pay as you go Supercharged

£30
2 uses today

Unlimited data pack for £30 with the new pay as you go Supercharged

FROM
£11

Samsung, Microsoft, Huawei and Apple tablets with prices from £11 per month

From £11

Samsung, Microsoft, Huawei and Apple tablets with prices from £11 per month

FREE
DATA

Get the Data Reward SIM for free and receive an extra 200MB of free data every month

Free Data

Get the Data Reward SIM for free and receive an extra 200MB of free data every month

FROM
£22

4G & 5G home broadband plans starting from £22

From £22

4G & 5G home broadband plans starting from £22

FROM
£10

Supercharged PAYG sim packs starting from £10

Don't settle for less. Find Three data top ups for your pay as you go SIM for as low as £10 a month.
From £10

Supercharged PAYG sim packs starting from £10

Don't settle for less. Find Three data top ups for your pay as you go SIM for as low as £10 a month.

FREE
SIM

Free SIM with Pay As You Go mobile plans

Free SIM

Free SIM with Pay As You Go mobile plans

FREE
5G

5G connection on new plans for free

Free 5G

5G connection on new plans for free

Popular Expired Three Discount Codes
50% Off

Extra 50% off SIM Only plan with unlimited data fo the first 6 months

Save half price right now with this Three SIM Only offer!
10% Off

10% off phone deals with the Three student discount

Calling all students! Register your student ID and score 10% off with these Three discounts.
£18

100GB for £18 per month with this SIM Only Offer

Catch this Three SIM Only deal and get 100GB for £18!